Solved papers for JEE Main & Advanced AIEEE Solved Paper-2004

done AIEEE Solved Paper-2004 Total Questions - 6

• question_answer1) The coordination number of a central metal atom in a complex is determined by
  A)
  the number of ligands around a metal ion bonded by sigma bonds
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  B)
  the number of ligands around a metal ion bonded by pi-bonds
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  C)
  the number of ligands around a metal ion bonded by sigma and pi-bonds both
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  D)
  the number of only anionic ligands bonded to the metal ion
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• question_answer2) Which one of the following complexes is an outer orbital complex? (At. nos.\[Mn=22,Fe=26,Co=27,Ni=28\])
  A)
  \[{{[Fe{{(CN)}_{6}}]}^{4-}}\]     
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  B)
        \[{{[Mn{{(CN)}_{6}}]}^{4-}}\]                    
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  C)
   \[{{[Co{{(N{{H}_{3}})}_{6}}]}^{3+}}\]    
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  D)
         \[{{[Ni{{(N{{H}_{3}})}_{6}}]}^{2+}}\]
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• question_answer3) Coordination compounds have great importance in biological systems. In this context which of the following statements is incorrect?
  A)
  Chlorophylls are green pigments in plants and contain calcium
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  B)
  Haemoglobin is the red pigment of blood and contains iron
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  C)
  Cyanocobalamin is vitamin \[{{B}_{12}}\] and contains cobalt
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  D)
  Carboxypeptidase-A is an enzyme and contains zinc
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• question_answer4) Which one of the following has largest number of isomers? (R = alkyl group, en= ethylenediamine)
  A)
  \[{{[Ru{{(N{{H}_{3}})}_{4}}C{{l}_{2}}]}^{+}}\]     
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  B)
  \[{{[Co{{(N{{H}_{3}})}_{5}}Cl]}^{2+}}\]
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  C)
         \[{{[lr\,\,{{(P{{R}_{3}})}_{2}}\,H(CO)]}^{2+}}\]   
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  D)
  \[{{[Co{{(en)}_{2}}C{{l}_{2}}]}^{+}}\]
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• question_answer5) The correct order of magnetic moments (spin only values in BM) among the following is (At. nos.\[Mn=25,\text{ }Fe=26,\text{ }Co=27\])
  A)
  \[{{[MnC{{l}_{4}}]}^{2-}}>{{[CoC{{l}_{4}}]}^{2-}}>{{[Fe{{(CN)}_{6}}]}^{4-}}\]
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  B)
  \[{{[MnC{{l}_{4}}]}^{2-}}>{{[Fe{{(CN)}_{6}}]}^{4-}}>{{[CoC{{l}_{4}}]}^{2-}}\]
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  C)
  \[{{[Fe{{(CN)}_{6}}]}^{4-}}>{{[MnC{{l}_{4}}]}^{2-}}>{{[CoC{{l}_{4}}]}^{2-}}\]
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  D)
  \[{{[Fe{{(CN)}_{6}}]}^{4-}}>{{[CoC{{l}_{4}}]}^{2-}}>{{[MnC{{l}_{4}}]}^{2-}}\]
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• question_answer6) The compound formed in the positive test for nitrogen with the Lassaigne solution of an organic compound is
  A)
  \[F{{e}_{4}}{{[Fe{{(CN)}_{6}}]}_{3}}\]
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  B)
  \[N{{a}_{3}}[Fe{{(CN)}_{6}}]\]
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  C)
  \[Fe{{(CN)}_{3}}\]
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  D)
  \[N{{a}_{4}}[Fe{{(CN)}_{5}}NOS]\]
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